Belt installing tool



July 1949. E. E. PENDLETON ETAL 2,475,459

BELT INSTALLING TOOL Filed June 12, 1947 n) 0 t o n pm i Z J e m EHouJi'on C. League INVEN TORS,

FIG. 3

ATTORNEY Patented July 5, 1949 BELT INSTALLING TOOL Ernest E. Pendleton,Oklahoma City, Okla, and Houston C. League, Joplin, Mo., assignors ofone-sixth to Charles E. Ziegler, Sapulpa, Okla, and one-sixth to Ira E.Dissinger, Joplin, Mo.

Application June 12, 1947, Serial No. 754,212

4 Claims.

Our invention relates to tools for installing belts upon pulleys, andmore particularly to a tool for installing a V-belt over a V-notchedpulley.

The principal object of the invention is to provide a tool which may bemanually operated safely, to install an endless V-belt, or endless driverope, over a peripherally grooved drive pulley, while the pulley isbeing driven to rotation.

Most V-belts have little elasticity, and since they must operate infairly deep grooves in the pulleys which they envelope, it is almostimpossible to manually stretch such belts sufficiently to install themabout the two pulleys.

At the present time, it is common practice to accomplish suchinstallation by one of two methods.

The first, and safest method, is to so mount one of the pulleys that itmay be moved toward and away from the other pulley. This methodoccasions the necessity of either loosening and then tightening take-upbearings, or loosening anchor bolts on the machine which carries one ofthe pulleys.

The other, and most commonly used method, is to pry the belt into placeupon the rotating drive pulley by the use of a pry-bar. This lattermethod is extremely dangerous to the person making the installation.

The present invention somewhat simulates this latter method, but thepresent tool eliminates the usual danger to life and limb which themethod occasions.

Another object is to provide a tool of this class in which moving oroperating parts have been reduced to a minimum.

A further object is to provide a tool which requires no particular skillor training to operate safely and successfully.

An additional object is to provide a tool which is strong, durable, andwhich is comparatively cheap to manufacture.

Other objects will be apparent from the following description when takenin conjunction with the accompanying one sheet of drawings, wherein:

Figure 1 is a perspective view of the tool of the present inventionoperatively installed for use upon a pulley, the belt being shown indotted lines;

Figure 2 is a top view of the belt guiding element; and

Figure 3 is a sectional view taken substantially along the line 3-3 ofFig. 2.

Like characters of reference designate like parts in those figures ofthe drawings in which they occur.

In the drawings:

The reference character A indicates, as a Whole, a usual V-belt drivepulley, and B indicates a V-belt which is being installed over thepulley A and within the peripheral groove thereof.

The device of the present invention consists substantially of a beltguiding member I which is of rigid construction, preferably being madeof stainless steel. In cross-section, the member or body i issubstantially V-shaped, having two depending flanges 2 and 3 whichconverge, and which are integrally united along their commonlongitudinal line 5 of convergence (Fig. 3) The outside flange 2 issubstantially straight vertically, while the inside flange 3 is slightlyarcuate and extends away from the flange 2 to provide therebetween aflared notch or groove 5.

Longitudinally, the flanges 2 and 3 are co-extensive from their lefthand ends 6 (Fig. 2) to a point i in their common longitudinal line ofconvergence. The extreme right hand ends of the flanges 2 and 3 extendlongitudinally beyond the point I to form respective prongs 8 and 9. Theprong 9, adjacent its right hand end, has a transverse perforation l0which receives the left hand end link of a chain II, the other end linkof which is connected to a ring I2. The oflice of the member I, chain IIand ring l2 will be more fully described hereinbelow.

Adjacent the left hand end B of the body I, and diagonally transversingthe longitudinal line 4 of convergence of the flanges, the body isprovided with an integral upstanding blade or web l3, which is also ofrigid construction.

In operation, the body I is placed upon a flange of the pulley A, withthe flange 3 lying within the peripheral groove of the pulley, and withthe prong 9 thereof pointing in the direction of r0tation of the pulley.When in such a position, the chain ll lies within the pulley groove, andthe upstanding blade l3 lies in a position to diagonally traverse thatpulley flange upon which the body is disposed.

The endless belt B is first looped beneath a driven pulley, not shown,and its upper portion is then loosely placed in the rearmost portion orextent of the pulley groove. The upper loop portion of the belt is thenpassed over the body I in front of the blade [3. One end of a pry-bar orrod I4 is then grasped in the hand of the operator, and its other end isinserted through in front of the forwardmost peripheral flange-0f saidthe ring I 2 into the pulley groove at a point below center of thepulley.

The outer end of the pry-bar is then pressed downwardly, thus moving thebody I and blade l3 along the pulley, in its direction of rotation, andtherefore tightening the belt B over the upper extent ofthe pulley. the,outer end of the, pry-bar l4; isznoved farther in a downward direc-vtion, the blade l3 forces the upper loop portion of the belt to threadinto the upper portion of the pulley groove.

When a sufilcient portion of the belt B has thus been placed infrictional engagement with the pulley, the friction will cause, the beltto be run onto the pulley within its: peripheral groove,

It is pointed out that the actually constitute a runner ody t and bladeHi hich a ay m v point of'contact of the belt with the pulley groove.The body I cannot, therefore, become fouled between the b lt nd h pe iera su fa e Q th u ey- .sincethe operators handis at no time, during thebelt installing operation, in close proximity with the pulley, not in aposition inwh hi maybe fouled with thebeltiniuriousaccidents r e iminatd- The ol. of setine be e vm a im a m nner fo ins allin belt up n P le wich ie n. horizontal alignment wit ch oth A lexib e embe uch as a cab ecou d of ou se la-use in lieu of theeha a It.

Ob iou l h nve tiqa s ceptible oome change or alteration without,defeating its prac: sab lit an e th r to/re do. ot Wish to onfined o hene rred. embod m wn in, he n s-and describ d h r in ur her han e arlimited, b he $40912 o th a p nded claims- We cl im:

A tool orguiqins n. a el s be t n 09* erative engagement with thedriving one of two peripherally groovedand' aligned pulleys, including:a runner adapted to slidably straddle one "driving pulley; an upstandingblade carried by the runner and dis posed atanangleto traversesaidpulley flange for guiding a belt thereover; and manually actuatedmeans for moving said runner along said flange, whereby the belt isguidably forced into said groove.

2. A tool for guiding an endless belt into operative engagement with thedriving one of two peripherally grooved and aligned pulleys, including;a runner" adaptedtq slidably straddle one peripheral flange of saiddriving pulley; belt engaging means rigidly projecting from said runner;a flexible element attached to one end of said runnerandadapted to liein the peripheral groove of said pulley; and a ring attached to the freeend ofvsaid elernentpf or receiving a pry-bar.

3, A tool for guiding an endless belt into operative engagement with thedriving one of two peripherally grooved and aligned pulleys, including:'a rigid elongated guide member having substantially V-shapedcross-sectional configuration, said member adapted for slidableinstallation in tr d lin r o @91 vnan i ra fl n e of a d rivi pulley; arigid blade xt qn g'q ward virqm idme ibe'r, n Posit to ae-h onallytraverse said pulley flange; a flexible ele; ment tteqhad to on n of aidm m r position tolie in the, peripheralgmove of said pulley;

and a ring attachedfto the free end of sai white a flexible m rit. orreceiv ng in 4- S ruqtllre s;v iief iiied n ai in the last mentionedmeans includes:

- element attached to one. end of said runner and ada te a i n th Peri hra r e o aid ll and a n attaqhe tq't t e e'mi' f said elementforreceiving a pry-bar.

ou r ir' c; LEAQU REFERENGES CITED The following references are ofrecord in the file of this patent:

UNITED STATES PATENTS

